<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<html>
<body>


<h2>error page</h2>
如果exceptionAttribute配置改为ex,那么就要用ex:  ${requestScope.ex}<br><br><br>
默认是exception域对象:${requestScope.exception}

</body>
</html>
